I mean there are plenty of things wrong with it. It’s a workaround, so: * if you use this, you can’t use any other sidebar at the same time * you need to put

I mean there are plenty of things wrong with it. It’s a workaround, so: * if you use this, you can’t use any other sidebar at the same time * you need to put in custom userchrome.css to hide top tabs. Once you’ve done this you can’t easily swap between vertical and horizontal tabs. * it’s ugly and, while not exactly buggy, there is a lot of UI weirdness that comes with it being a workaround I still use it and have done for years but native support would be a big improvement.